Biindene-C60 adducts for the application as acceptor in polymer solar cells with higher open-circuit-voltage

被引：30

作者：

He, Youjun ^{[2
]}

Chen, Hsiang-Yu ^{[1
]}

Zhao, Guangjin ^{[2
]}

Hou, Jianhui ^{[1
]}

Li, Yongfang ^{[2
]}

机构：

[1] Solarmer Energy Inc, El Monte, CA 91731 USA

[2] Chinese Acad Sci, Beijing Natl Lab Mol Sci, CAS Key Lab Organ Solids, Inst Chem, Beijing 100190, Peoples R China

来源：

SOLAR ENERGY MATERIALS AND SOLAR CELLS | 2011年 / 95卷 / 03期

关键词：

Fullerene derivatives; Biindene-C-60; adducts; P3HT; Polymer solar cells; PHOTOVOLTAIC PROPERTIES; EFFICIENCIES; FULLERENES;

D O I：

10.1016/j.solmat.2010.11.016

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

Two C-60 derivatives, biindene-C-60 monoadduct (BC(60)MA) and biindene-C-60 bisadduct (BC(60)BA), were synthesized by an one-pot reaction of 1, l'-biindene and C-60, for the application as acceptor materials in Polymer Solar Cells (PSCs). The two C-60 derivatives possess good solubility in toluene and o-dichlorobenzene, and the solubility of BC(60)BA is even better than that of BC(60)MA. The electrochemical properties and the LUMO energy levels of the two fullerene derivatives were investigated by cyclic voltammetry. The LUMO energy levels of BC(60)MA and BC(60)BA were 0.06 and 0.17 eV higher (up-shifted) than that of PCBM, respectively. The PSCs based on P3HT as donor and BC(60)MA or BC(60)BA as acceptorexhibited higher V-oc of 0.68 and 0.82 V, respectively, which is benefited from the higher LUMO energy levels of the C-60 derivatives. The power conversion efficiency of the PSC based on P3HT/BC(60)MA was 2.21% after annealing at 140 degrees C for 5 min. (C) 2010 Elsevier B.V. All rights reserved.

引用

页码：899 / 903

页数：5

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